Biologists have noticed that the chirping rate of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 113 chirps per minute at 70F and 173 chirps per minute at 80F. (a) Find a linear equation that models the temperature T as a function of the number of chirps per minute N. (b) What is the slope of the graph? What does it represent? (c) If the crickets are chirping at 150 chirps per minute, estimate the temperature.

Chapter 7: Energy Balance and Weight Control Section 7.1: Energy Balance • Energy balance: the energy you take in (food) matches the energy you put out (calorie burn) - Positive energy balance: when you eat more calories than you burn. - Negative energy balance: when you eat fewer calories than you burn. • Basal metabolism (BMR): the minimum amount of calories the body needs to support itself in a fasting state (not eating). - 1 kcal/kg for men per hour - .9 kcal/kg for women per hour • Resting metabolism: the amount of calories the body uses when a person hasn’t eaten for 4 hours. • Thermic effect of food: when your metabolism is increased during the absorption, digestion, and metabolism of carbs, proteins, and fats. • Bom